Right? It means that, no matter how many times you get beaten down, you can always jump right back up and punch your enemies in the face, returning all the force they hit you with in a single concentrated blow

That’s a superpower I gave to a character in a story of mine actually. Besides just absorbing the shock of other’s moves, He can absorb the shock of any physical contact force, store it, and release it. This includes getting hit by a train and storing that impact for later use. Or even jumping off of a skyscraper and absorbing the shock from the landing. To keep it from being OP, the character might have to undergo training to extend the limit of how much force they can store.

I only made reference to fighting, but the character I got the Quirk idea from, Yang, I think she can do that too. It doesn’t technically have to be a physical blow from an enemy. One of the things she can do when she wants to power up is actually kind of punch her fists together in front of her, and that counts as some force that can be stored up to give some weight behind her punches.
Plus she once took a punch that sent her through a concrete pillar. And she got a ton of power from that, so there’s assuming that she got double power from both the punch and the impact from going through the pillar.
She herself has a limit, too. The reason she can take so many hits without taking massive damage is because she has a thing called aura to protect her body from major harm. But her supply of aura is finite, so once she runs out of aura, she can no longer take blows all willy nilly, as at that point it would actually cause her to get hurt.

I would be a dual quirk hybrid. 1# Condensation – the power to manipulate humidity and create water out of thin air even in the middle of a desert. 2# Gardener – thhis power, paired with power 1#, would allow me to grow any plant out of seeds around me in a split second. I would also carry bags of seeds such baobab & sequoia trees and several venomous plants.

The power to take wounds, store them, and give them to others later. I could heals a person’s broken leg and then give the broken leg to someone else. I would hang out in libraries all the time and wait for people to get paper cuts and then I would take that person’s paper cut and store it. After long enough I would start to fight villains by carrying lemon juice. I would give them a ton of paper cuts and then I would throw lemon juice at them so then they would be in too much pain to fight. My hero name would be ‘Lemon Slash’.